<template>
  <el-dialog
    width="500px"
    title="维修人员导入"
    :visible="showExcelDialog"
    @close="$emit('update:showExcelDialog', false)"
  >
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx, .xls"
          @change="uploadChange"
        />
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text" @click="download">下载导入模板</el-button>
          <span
            >将文件拖到此处或
            <el-button type="text" @click="handleUpload">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button
        size="mini"
        type="primary"
        @click="$emit('update:showExcelDialog', false)"
        >取消</el-button
      >
    </el-row>
  </el-dialog>
</template>

<script>
export default {
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    download() {
      this.$http({
        url: this.$http.adornUrl('sys/repairman/getExcelTemplate'),
        responseType: 'blob'
      }).then(({ data }) => {
        const link = document.createElement('a')
        let blob = new Blob([data], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
        link.style.display = 'none'
        link.href = URL.createObjectURL(blob)
        link.setAttribute('download', '维修人员信息表.xlsx')
        document.body.appendChild(link)
        link.click()
        document.body.removeChild(link)
      })
    },
    handleUpload() {
      this.$refs['excel-upload-input'].click() // this.$refs.属性名 和 this.$refs[属性名] 等价
    },
    uploadChange(event) {
      //console.log(event.target.files[0])
      // 调用上传接口
      // uploadExcel() // 参数  form-data 需要文件file
      const files = event.target.files // input的文件列表

      // 大于0 说明有文件要上传
      const data = new FormData()
      // file: file类型
      data.append('file', files[0]) // 将文件参数加入到formData中
      try {
        this.$http({
          url: this.$http.adornUrl('sys/repairman/importRepairman'),
          method: 'post',
          data,
          params: {
            userId: this.$store.state.user.id
          }
        }).then(({ data }) => {
          if (data.code === 0) {
            // 成功
            this.$message.success(data.msg)
            this.$emit('uploadSuccess') // 通知父组件 我上传成功
            this.$emit('update:showExcelDialog', false) // 关闭弹层
          } else {
            this.$message.error(data.msg)
          }
        })

        // this.$refs['excel-upload-input'].value = ''
      } catch (error) {
        // 捕获失败
        // this.$refs['excel-upload-input'].value = ''
      } finally {
        // 不论成功或者失败都会执行finally
        this.$refs['excel-upload-input'].value = ''
      }
    }
  }
}
</script>

<style scoped lang="scss">
.upload-excel {
  display: flex;
  justify-content: center;
  margin: 20px;
  width: 360px;
  height: 180px;
  align-items: center;
  color: #697086;
  .excel-upload-input {
    display: none;
    z-index: -9999;
  }
  .btn-upload,
  .drop {
    border: 1px dashed #dcdfe6;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .drop {
    line-height: 40px;
    color: #bbb;
    i {
      font-size: 60px;
      display: block;
      color: #c0c4cc;
    }
  }
}
</style>
